Ametek 7270 Instruction Manual page 64

Chapter 5, FRONT PANEL OPERATION
5-16
The Output Equations menu is used to define more complex calculations on the
instrument outputs than are possible using the basic ratio and log ratio options. There
are two user-defined equations, Equation 1 and Equation 2, which take the following
form:-


(A B)

Equation =

D
where the operator "±" may be set to either addition or subtraction, and the variables
A, B, C and D can be chosen from the following list:-
Variable
X
Y
MAG
PHA (Phase)
ADC1
ADC2
ADC3
ADC4
C1
C2
0
1
FRQ (Reference Frequency)
OSCF(Oscillator Frequency)
The select keys are used to highlight the required variable, and then the adjust
keys are used to change it.
The values C1 and C2 within each equation are user-defined integer constants and
are adjusted using the two corresponding
the keypad, by pressing SET CONSTANT followed by the required value on the
keypad, or by using the Active Cursor.
Figure 5-11, Output Equations Menu


C


Range
±30000
±30000
0 to +30000
±18000
±10000
±10000
±10000
±10000
0 to 100000
0 to 100000
Zero
Unity
0 to 250000000 (Only available in position C)
0 to 250000000 (Only available in position C)
keys. They may also be set using